Primary Unix NFS fileserver back in operation

Greetings,
At 3:33 PM today the fileserver that serves unix home directories unexpectedly went offline for about one hour.
The system appears stable and all services should be available now, if your workstation is misbehaving you should try rebooting it. If it’s still having issues or if you notice anything else out of order please alert the CELS/MCS help desk.
No data was should have been lost.
I regret and apologize for the inconvenience.
I’m not entirely sure of all the gritty details of what went wrong at this time, but here are a few more details for the curious:
We are in the process of moving the file services to a newer system. This afternoon, as part of preparing for this process I attempted to create a new raid array on 4 new hard drives attached to the system. Unfortunately one of the drives was faulty and something about the creation process cause the system to become unresponsive. This server is a pretty long in the tooth and hadn’t been rebooted in a long time. The boot process was not stable, and we needed to reconfigure some settings in the bios in order for the system to recognize the correct boot environment.
Again, I’m sorry for the interruption in service.